1. a) What is a map?

1. a) What is a map?

Answers may vary, but should include the following concepts:Maps are a flat-surface representation of a part (or all) of Earth’s surfaceMaps use symbols (including colours) to show features on Earth’s surface

b) Why are maps useful tools?

Answers may vary, but should include:• Maps are useful tools for showing

spatially related information

c) How do maps help focus the reader’s attention on just a few specific things?

…by presenting only a selected number of features that are found on Earth.(pages 22-25)

Imago Mundi (c. 600 BCE)Babylonian map, the oldest known

world map, 6th century BCE

Hereford Mappa Mundi 1300• Drawn on a single sheet of

vellum• Measures 158 cm by

133 cm• The writing is in black ink,

with additional red and gold, and blue or green for water (with the Red Sea coloured red)

• Captions convey a mass of information on Biblical subjects and general history, in addition to geography

http://www.youtube.com/watch?v=hetq6CDfUUE&list=PLna7IMjegItQRjosiVkFrd5OJrZPfxIfU

2. What are general-purpose maps used for?

GPMs show a wide variety of information:• They are designed to provide a broad

understanding of an area• They are used for every day purposes (ex.

finding the location of a park on a city map, planning a canoe trip in a large provincial park)

3. a) What is the purpose of thematic maps?

TMs are used to display very specific information.Examples:• Maps that show the location of

secondary schools in a district• Maps that show routes of school buses in

a rural area

b) Why are thematic maps useful?

TMs are useful because:They are easy to understand

Why are they easy to understand?…because there is a limited amount of information on the map

c) Find 3 examples of thematic maps in your textbook

• Page 147 (Figure 13-3) Air masses and ocean currents• Page 407 (Figure 30-3) Road and

railway accessibility• Page 496 (Figure 37-8) Effects of

global warming on vegetation regions

4. What is the purpose of a topographic map?

Topographic maps are large-scale maps that show:• The natural and human features of a

small area in detail

Large-scale Maps Small-scale Maps

Definition

Typical Scales

Purpose

5. Construct a chart to compare large-scale and small-scale maps.

Large-scale Maps Small-scale Maps

Definition Maps with a large amount of detail of a small area

Maps that show less detail of a larger area

Typical Scales 1: 50 000 or less Greater than 1:50 000

Purpose Residential planning, recreational activities, military purposes

To show political, physical, and economic information

5. Construct a chart to compare large-scale and small-scale maps.

8.a) On a topographic map, what does the colour green indicate? (Fig. 2-6 – page 25)

Green is used to show vegetation Forested areas are shaded green.Orchards are shown with a dense pattern of green dots.

8. b) In which direction does Indian Brook flow?

It flows northward. There are clues on the map that tell you this:• Contour lines that the brook crosses get

lower northward• Contour lines have V-shapes pointing

southward (upstream)• Indian Brook drains into Georgian Bay

(not the other way around)

8. c) What features are found at the following letters?

A – MarshlandB – Forested area C – OrchardD – Sewage treatment pondE – MarinaF – Spot elevation along the highway

8. d) Is a legend necessary for a topographic map?

An attempt has been made to make symbols understandable without reference to a legend on a topographic map. Some symbols are obvious: golf course / highway.BUT…Many symbols are not obvious and a legend must be consulted.

To do now:

#6-7 on page (homework check tomorrow)and…Review key terms for tomorrow’s Chapter quiz